Avoid non-portable use of $< in non-pattern rule.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@4018 221aa14e-8319-0410-a670-987f0aec2ac5

diff --git a/usrp/doc/Makefile.am b/usrp/doc/Makefile.am
index 89f902e3289bad2103e596f03b1e4318a07c12ae..f39961adce51edba69e9009dd275d9361d23602a 100644 (file)
--- a/usrp/doc/Makefile.am
+++ b/usrp/doc/Makefile.am
@@ -52,7 +52,7 @@ html/index.html:
 docbook-html: usrp_guide.html
 
 usrp_guide.html: usrp_guide.xml
-       xmlto html-nochunks $<
+       xmlto html-nochunks usrp_guide.xml
 
 install-data-local:
        $(mkinstalldirs) $(DESTDIR)$(docdir)